Choose the word which has a different stress pattern from the others

1. A. musician B. scientist C. energy D. biogas

2. A.effective B. regular C. different D. serious

Change the sentences into the passive voice

1. Will the plumber checks cracks on the water pipes in two day ?

\(\rightarrow\)Will cracks.................................................................................

2. People won't burn fossil fuels for energy in the time

\(\rightarrow\) Fossil fuels................................................................................

3. Space-based solar power will allow us to work around these challenges

\(\rightarrow\) We.............................................................................................

Exercise 1: Choose the best answer.

1. We are looking for _______ place to spend ________ night.

A. the/the B. a/the C. a/a D. the/a

2. Please turn off ________ lights when you leave ________ room.

A. the/the B. a/a C. the/a D. a/the

3. We are looking for people with ________experience.

A. the B. a C. an D. x

4. Would you pass me ________ salt, please?

A. a B. the C. an D. x

5. Can you show me ________way to ________station?

A. the/the B. a/a C. the/a D. a/the

6. She has read ________interesting book.

A. a B. an C. the D. x

7. You’ll get ________shock if you touch ________ live wire with that screwdriver.

A. an/the B. x/the C. a/a D. an/the

8. Mr. Smith is ________ old customer and ________ honest man.

A. An/the B. the/an C. an/an D. the/the

9. ________ youngest boy has just started going to ________ school.

A. a/x B. x/the C. an/x D. the/x

10. Do you go to ________ prison to visit him?

A. the B. a C. x D. an

Exercise 2: Choose the correct answer :

1. ________eldest boy is at ________ college.

A. a/the B. the/x C. x/ a D. an/x

2. Are you going away next week? No, ________ week after next.

A. an B. a C. the D. x

3. Would you like to hear ________ story about ________ English scientist?

A. an/the B. the/the C. a/the D. a/ an

14. There’ll always be a conflict between ________ old and ________ young.

A. the/the B. an/a C. an/the D. the/a

5. There was ________ collision at ________ corner.

A. the/a B. an/the C. a/the D. the/the

6. My mother thinks that this is ________ expensive shop.

A. the B. an C. a D. x

7. Like many women, she loves ________ parties and ________gifts.

A. the/ a B. a/the C. a/a D. x/x

8. She works seven days ________ week.

A. a B. the C. an D. x

9. My mother goes to work in ________ morning.

A. a B. x C. the D. an

10. I am on night duty. When you go to ________ bed, I go to ________ work.

A. a/x B. a/the C. the/x D. x/x

Fill in each blank with an appropriate word.

1-..... energy resources include coal, oil, natural gas and uranium.

2-..... energy creates clean, renewable power from the sun.

3-We need to look for ways to reduce our carbon ..... .

4-Coal is a ..... fuel that was formed millions of years ago.

5-Renewable energy sources will never ..... out because they are easily replenished.

6-Burning fossil fuels emits a lot of pollutants that are ..... to the environment.

7-Solar ..... are fitted to building and turn the sun's ray into energy.

8-Some countries are ..... coal with natural gas because natural gas is less polluting than coal.

Hello students. Today I'd like to tell you some information about types and sources of energy. Energy is classified into two main groups: renewable and non-renewable.

The energy generated from natural sources such as the sun, wind, rain, and tides is called renewable energy. They are plentiful and can be generated again and again. They also have low carbon emissions so they are considered green and environment-friendly. Moreover, using renewable energy can reduce your electricity bills. Unfortunately, solar energy can be only used during the daytime but not during night or the rainy season. Geothermal energy also can bring toxic chemicals beneath the earth's surface to the top and can create environmental changes.

Non-renewable energy is the energy taken from other sources that are available on earth. They are limited and will run out in the future. They can't be re-generated in a short time. Fossil fuels - natural gas, oil and coal - are examples of them. They are cheap and easy to use. However, when burnt, they release toxic gases in the air so they cause serious environmental changes such as global warming. And the important thing is that non-renewable sources will expire someday.

Question 4: Non-renewable energy can be generated in a short time.

Hello students. Today I'd like to tell you some information about types and sources of energy. Energy is classified into two main groups: renewable and non-renewable.

The energy generated from natural sources such as the sun, wind, rain, and tides is called renewable energy. They are plentiful and can be generated again and again. They also have low carbon emissions so they are considered green and environment-friendly. Moreover, using renewable energy can reduce your electricity bills. Unfortunately, solar energy can be only used during the daytime but not during night or the rainy season. Geothermal energy also can bring toxic chemicals beneath the earth's surface to the top and can create environmental changes.

Non-renewable energy is the energy taken from other sources that are available on earth. They are limited and will run out in the future. They can't be re-generated in a short time. Fossil fuels - natural gas, oil and coal - are examples of them. They are cheap and easy to use. However, when burnt, they release toxic gases in the air so they cause serious environmental changes such as global warming. And the important thing is that non-renewable sources will expire someday.

Question 2: There is a large amount of non-renewable energy.